org.apache.flink.optimizer.traversals

类 BinaryUnionReplacer

java.lang.Object

org.apache.flink.optimizer.traversals.BinaryUnionReplacer

所有已实现的接口:

org.apache.flink.util.Visitor<PlanNode>

public class BinaryUnionReplacer
extends Object
implements org.apache.flink.util.Visitor<PlanNode>

A traversal that collects cascading binary unions into a single n-ary union operator. The exception is, when on of the union inputs is materialized, such as in the static-code-path-cache in iterations.

构造器概要

构造器

构造器和说明
BinaryUnionReplacer()

方法概要

限定符和类型	方法和说明
void	collect(Channel in, List<Channel> inputs)
void	postVisit(PlanNode visitable)
boolean	preVisit(PlanNode visitable)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

BinaryUnionReplacer

public BinaryUnionReplacer()

方法详细资料

preVisit

public boolean preVisit(PlanNode visitable)

指定者:

preVisit 在接口中 org.apache.flink.util.Visitor<PlanNode>

postVisit

public void postVisit(PlanNode visitable)

指定者:

postVisit 在接口中 org.apache.flink.util.Visitor<PlanNode>

collect

public void collect(Channel in,
                    List<Channel> inputs)